Question

What do you know about hole in ozone layer? Explain the probable damages caused by it.

Answer 1

Ozone, $O_3$ is a molecule that contains three atoms of oxygen. Ozone is poisonous but it is not stable near the Earth's surface. It occurs in the zone of Earth's atmosphere called stratosphere. Ozone absorbs harmful ultraviolet radiations from the Sun. Thus it protects us from certain diseases like cancer. Various man-made compounds like chlorofluoro-carbons (CFCs) react with ozone molecule and cause depletion in the ozone layer (ozone hole) in the atmosphere. Due to ozone layer depletion, UV-rays can enter the Earth's atmosphere and cause certain diseases. It also cause certain mutational changes. It can lead to destruction of flora and fauna.